Home / 591,310.64-816,008.38-319,378.40

Finding the Fourth Proportional to 591,310.64, 816,008.38 and 319,378.40

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Solution

The fourth proportional to 591,310.64, 816,008.38 and 319,378.40 is: 440,742.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,310.64 : 816,008.38 = 319,378.40 : x
  2. Step 2: Convert to fraction form
    591,310.64/816,008.38 = 319,378.40/x
  3. Step 3: Cross multiply
    591,310.64x = 816,008.38 × 319,378.40
  4. Step 4: Simplify right side
    591,310.64x = 260,615,450,790.99
  5. Step 5: Solve for x
    x = 260,615,450,790.99/591,310.64
  6. Step 6: Final answer
    x = 440,742.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.